Township of Upper Providence, PA Article III Stormwater Management for Water Quality

§ 150-7 General requirements for stormwater management.

A. All regulated earth disturbance activities within the Township shall be designed, implemented, operated and maintained to meet the purposes of this chapter, through these two elements:

(1) Erosion and sediment control during the earth disturbance activities (e.g., during construction), and

(2) Water quality protection measures after completion of earth disturbance activities (e.g., after construction), including operations and maintenance.

B. No regulated earth disturbance activities within the Township shall commence until the requirements of this chapter are met.

C. Erosion and sediment control during regulated earth disturbance activities shall be addressed as required by § 150-8.

D. Postconstruction water quality protection shall be addressed as required by § 150-9. Operations and maintenance of permanent stormwater BMPs shall be addressed as required by Article V.

§ 150-8 Erosion and sediment control during regulated earth disturbance activities.

A. No regulated earth disturbance activities within the Township shall commence until approval by the Township of an erosion and sediment control plan for construction activities.

B. Evidence of any necessary permit(s) for regulated earth disturbance activities from the appropriate DEP regional office or County Conservation District must be provided to the Township.

C. A copy of the erosion and sediment control plan and any required permit, as required by DEP regulations, shall be available at the project site at all times.

§ 150-9 Water quality requirements after regulated earth disturbance activities are complete.

A. No regulated earth disturbance activities within the Township shall commence until approval by the Township of a plan which demonstrates compliance with this chapter after construction is complete.

B. To control postconstruction stormwater impacts from regulated earth disturbance activities, State Water Quality Requirements can be met by BMPs, including site design, which provide for replication of preconstruction stormwater infiltration and runoff condition, so that postconstruction stormwater discharges do not degrade the physical, chemical or biological characteristics of the receiving waters. This may be achieved by the following:

(1) Infiltration: replication of preconstruction stormwater infiltration conditions;

(2) Treatment: use of water quality treatment BMPs to ensure filtering out of the chemical and physical pollutants from the stormwater runoff: and

(3) Streambank and streambed protection: management of volume and rate of postconstruction stormwater discharges to prevent physical degradation of receiving waters (e.g., from scouring).